• What Does The UL94 Flammability Rating Mean?

    What Does The UL94 Flammability Rating Mean? ... UL94 differs between a horizontal burning test UL94 HB and a vertical burning test UL94 V. ... Burning rate of specimen in mm/min. Classification: According to HB . UL94 V – Vertical Burning Test. Test Criteria: Afterflame time of specimen. Drip of flaming particles.

    Get Price
  • Standard Test Method for Horizontal Burning Rate of ...

    The rate of burning is affected by such factors as density, direction of rise, and type and amount of surface treatments. ... This test method is intended for use as a smallscale laboratory procedure for comparing the relative horizontal burning rates of polymeric materials used in occupant compartments of motor vehicles.

    Get Price
  • UL Thermoplastics Testing Center UL 94 HB

    Flammability UL 94 HB Horziontal Burning. The horizontal burning test is used to determine the HB flammability rating of a material. The flammability rating is calculated for a test specimen as a function of the burning rate and taking account of the material thickness.

    Get Price
  • ASTM D635 18 Standard Test Method for Rate of Burning ...

    This firetestresponse test method covers a smallscale laboratory screening procedure for comparing the relative linear rate of burning or extent and time of burning, or both, of plastics in the form of bars, molded or cut from sheets, plates, or panels, and tested in the horizontal position.

    Get Price
  • Horizontal Burning Rates of Fabrics with Low AddOns of ...

    Oxygen index (OI) and horizontal burning rates at atmospheric oxygen concentration were studied with emphasis on fabrics with low addons of the values increased as addons increased; however, the OI values were increased about twice as much by 2% addon at low levels of addon as with 2% at high levels of addon.

    Get Price
  • Calculation of Liquefied Natural Gas (LNG) Burning Rates

    Calculation of Liquefied Natural Gas (LNG) Burning Rates ... 1987, different methods were used to determine the evaporation rates due to fire. Moreover, it ... Mass burning rate measurements and calculations were obtained from different methods commonly used.

    Get Price
  • ASTMD635 | Standard Test Method for Rate of Burning and ...

    This firetestresponse test method covers a smallscale laboratory screening procedure for comparing the relative linear rate of burning or extent and time of burning, or both, of plastics in the form of bars, molded or cut from sheets, plates, or panels, and tested in the horizontal position.

    Get Price
  • ASTMD5132 | Standard Test Method for Horizontal Burning ...

    Standard Test Method for Horizontal Burning Rate of Polymeric Materials Used in Occupant Compartments of Motor Vehicles ORDER. Scope. This test method is intended for use as a smallscale laboratory procedure for comparing the relative horizontal burning rates of polymeric materials used in occupant compartments of motor vehicles.

    Get Price
  • FABRIC FLAME TESTS: VERTICAL OR HORIZONTAL?

    FABRIC FLAME TESTS: VERTICAL OR HORIZONTAL? ... is obtained using the horizontal, Steiner tunnel test and measures the surface burning characteristics of structural materials (that is, the amount of smoke, gases, and heat generated) when ... tests are intended to assess the possible burning rate of fabrics and films that are used as decorative

    Get Price
  • UL 94 Flammability Ratings Summary

    Burning stops within 60 seconds after two applications of ten seconds each of a flame to a test bar. Flaming drips ARE allowed. HB Horizontal Burn Slow horizontal burning on a 3mm thick specimen with a burning rate is less than 3"/min or stops burning before the 5" mark. HB rated materials are considered "selfextinguishing".

    Get Price